scholarly journals The Influence of Shell Permeability on Stability of Upstream Slope during Rapid Drawdown – Khassa Chai Earth Dam as a Case Study

2021 ◽  
Vol 21 (2) ◽  
pp. 15-28
Author(s):  
Krikar Noori ◽  
Sirwan Salim
Keyword(s):  
Earth Dam ◽  
Upstream Slope

The Effect of Faults on the Behaviour of the Earth Dam – Case Study of the Ourkiss Dam

2021 ◽  
Author(s):  
Hassiba Beghzim ◽  
Toufik Karech ◽  
Tayeb Bouzid
Keyword(s):  
Shear Stress ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Water Level ◽  
Difference Method ◽  
Earth Dam ◽  
The Earth ◽  
Base Displacement ◽  
Vertical Base

Abstract The analysis of the failure due to the effect of the propagation of normal and reversed faults with different angles of inclination and by sliding through the Ourkiss dam isstudied numerically. Mainly at the end of construction and at the highest water level, for this purpose the non-linear finite difference method is used considering four fault angles of inclination, activated at the center of the base of the embankment.The results of the study show that the shear stress values increase with the increase of the vertical base displacement imposed in both conditions of the dam state, and this for both normal and overturned faults.

Uncertainty Analysis and Monitoring of Earth Dam

2014 ◽  
Vol 580-583 ◽  
pp. 954-957
Author(s):  
Ling Qiang Yang ◽  
Rui Gao ◽  
Yan Wang
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Probabilistic Method ◽  
Finite Difference Methods ◽  
Earth Dam ◽  
Earth Dams ◽  
Program Code ◽  
Physical Behavior ◽  
Difference Methods

Monte Carlo simulation provides a probabilistic method to evaluate the physical behavior of earth dam. Therefore, the behavior could be got in a more realistic manner. Based on the theory, an innovative software program code is developed by combining the Monte Carlo and finite difference methods to predict the performance of earth dams after impounding. In order to assess the efficiency of the method, the case study of earth dam, located at Southeast of China, has been studied in detail. The performance of this dam is predicted and compared with the field monitoring by using the monitoring data. The results shows the robustness of the proposed method.

scholarly journals CASE STUDY ON ZONING PATERN OF OLD SMALL EARTH DAM EMBANKMENT REHABILITATED BY CEMENT-MIXED MUDDY SOIL

2009 ◽  
Vol 65 (4) ◽  
pp. 789-805
Author(s):  
Shinji FUKUSHIMA ◽  
Shigeru TANI ◽  
Akira KITAJIMA ◽  
Jun GONOI ◽  
Kouji NISHIMOTO
Keyword(s):  
Earth Dam

scholarly journals Research on the infiltrations in an earth dam. Case study: Cuibul Vulturilor Reservoir, Vaslui County, Romania

2021 ◽  
Vol 15 (1) ◽  
pp. 211-220
Author(s):  
Ioan Balan ◽  
Horațiu Hogaș ◽  
Loredana Crenganiș ◽  
Isabela Balan ◽  
Flaviana Corduneanu ◽  
...  
Keyword(s):  
Hydraulic Head ◽  
The Other ◽  
Central Core ◽  
Earth Dam ◽  
Maximum Height ◽  
Drainage Pipe ◽  
Bottom Outlet

The dam of the reservoir Cuibul Vulturilor, located on the Tutova river is an inhomogeneous earth dam with a maximum height of 15.0 m, with a clayey central core and lateral prisms made of clayey-dusty sands. For tracking the evolution of body dam seepage, 12 piezometers and a drainage pipe with discharge in the downstream connection channel of the bottom outlet are used. The paper presents the characteristic elements of the theoretical infiltration curve in the dam It also shows the hydro isohypses for the dam drawn with SURFER program, using the maximum hydrostatic levels in the piezometers measured in the year 2019. The distribution of the hydro isohypses across the dam is strongly influenced by the location of the piezometers and the other point of measuring the hydraulic head. The pattern circulation of the infiltration water inside the dam body could be studied with increased accuracy, if the dam had been equipped with several piezometers. Even in these conditions, it is clearly observed that the regime of infiltrations through the dam body is similar to the theoretical way of behavior.

scholarly journals Slope Stability of an Earth Dam during Drawdown Conditions (KHASA-CHAI Dam) as a Case Study

2018 ◽  
Vol 7 (4.37) ◽  
pp. 17
Author(s):  
Adnan Jayed Zedan ◽  
Mariwan Ridha Faris ◽  
Ahmed Amer Abdulsattar
Keyword(s):  
Slope Stability ◽  
Factor Of Safety ◽  
Slip Surface ◽  
Earth Dam ◽  
Downstream Face ◽  
Upstream Slope ◽  
Maximum Water Level ◽  
Water Drawdown ◽  
Action Taking ◽  
Safe Condition

Aiming in this research was to have a clear view about the behavior of Khasa-Chai Dam during the draw down action taking into consideration the newly built of this dam which was filling during the time of this article, the upstream slope was investigated by taking drawdown of the water from the reservoir. This dam is consists of the zoned embankment with a total length of (2.36 km) with an upstream slope (1v:3h) and downstream slope (1v:2h). Slope stability was investigated during the drawdown of the water from the reservoir by considering the water in the reservoir to be at maximum water level and by taking two cases during the rapid and slow drawdown. SLOPE/W which is a sub program from Geo-Slope software was used in association with SEEP/W software to find the factor of safety of the upstream slip surface during the drawdown conditions. It was noticed from the drawdown conditions that the phreatic line falls almost at the same position for both cases. Also for both cases the factor of safety of the upstream slip surface falls above the value of (1.0) and that is mean the upstream slope is in a safe condition when the water drawdown. The exit gradient and the rate of flow at the downstream face decrease with time as the water in the reservoir drawdown which means the factor of safety against boiling increases with time.  

Sign in / Sign up

Export Citation Format

Share Document